Excavator-shovel.



H. G. BUTLER. EXGAVATOR SHOVEL. APPLIOATION FILED DBO.20,1909.

Patented Mar. 21, 1911.

INVENTOR g. 61%

WITNESSES ATTO'RNEY 'rnn STATES EXCAVATOR-SHOVEL.

Specification of Letters Fatent;

Aoolication flled December 20, 1909. .Serial No. 534,068.

Toall whom it may concern:

Be it known that I, HENRY G. BUTLER, a citizen .of the United states',residing at Kenosha, in the county of Kenosha and State of lVisconsin,have invented certain new and useful Improvements in Excavator- Shovels,of which the following is a specification.

The object of my invention is to provide a, combined excavating anddumping shovel 'which being provided with a supporting cable and a cableadapted to draw the shovel toward the filling power is suited to dig 4and deliver earth or other material and dump it automatically at thedesired point when the tension of the filling cable is released. Thisdevice is especially adapted for use with derricks, cranes, excavatorsand the like.

I accomplish illustrated in the accompanying drawings, in which,- 4

Figure 1 is a perspective of the device the bottom dropped in unloadedposition by re-.

lease of the tension on a flexible cable or chain-and on a fillingcable, and Fig. :2 is a sectional side view of the device the bottomheld closed in drag and loaded position by ,the tension of the chain andfilling cable and arranged. for forward dumping, the dotted lines onsaid figure representing the same shovel arranged for rear dumping.

Similar letters refer to similar parts in the several views.

In the drawings A represents the body member of the device and B thebail thereof. C is the. bottom of the device; it is pro vided with lugsD D which engage with pivots d d on the sides of the body member, 40thus pivotallyv hinging said bottom to the body. As shown these lugsandpivots are set rearward or forward of the center of gravity, leaving thelarger part of the load rearward or forward of the hinged part of saidbottom thereby causing the device to dump rearward or forward asdesired. It is frequently necessary to have the bottom of a shovel ofthis type. automatically adjust itself to the filling or normal positionbefore 5o filling. To accomplish this I a bottom heaviest on the shortend figuring from the hinges, hence like thebeam of a scale the bottomassumes a level position when empty and dumps when loaded. E is a shearintegral with said bottom adapted to cut downinto the earth asthe-shovel is dragged formy object by the mechanism front of said deviceits ends rojecting through the sides of the body mem er forming axlesfor the support ofsheaves I I.

The two ends of a chain or cable J are car Patented Mar. 21, 1911."

ward. A brace rod extends across the ried over said sheaves downinto-engagement with eyes in lugs K K which are attached to the bottomof said shovel vertically below said sheaves. Without changing the scopeof this invention eyes or guides may be substituted for the sheaves.From the foregoing it will be readily seen that the tension on cable 'orchain J and the filling cable attached thereto holds said bottom up tothe body member during the process of filling and conveying the earth orother material to the dump, and that the mere act of slack- 1 ing chainJ by loosening said filling cable accomplishes the dumpingautomatically.

What I claim and desire to secure by Let-.

ters Patent, is

1. In an excavatorshovel of the type described a body portion with abottom hinged thereto and means in connection with a drag line forcontrolling said bottom, substantially as set forth and shown.

2. An excavator shovel having a body portion and a bottom hinged theretooutside the center of gravity of said bottom and means for cont-rollingsaid bottom, sub: stantially as shown.

3. An excavator shovel having a body portion and a bottom pivotallyhinged to said body outside the center of gravity and drag linemechanism for controlling said bottom, substantially as set forthand'shown.

4. An excavator shovel having a body portion, a bottom hinged theretooutside the centerof gravity of said bottom, draft line mechanism forcontrolling said bottom during the of the bucket and a bail attached tosaid body portion, substantially as shown.

5. An excavator shovel having a body portion, a. bottom hinged theretooutside the center of gravity when loaded and drag line mechanism forcontrolling said bottom when loaded and empty, substantially as setforth.

6. An excavator shovel having a body portion, a bottom hinged theretorearward of the center of gravity when empty and forward of the centerof gravity .when

loaded, substantially as described.

7. An excavator shovel having a body portion and a bottom hinged theretofor filling, carrying and dumping Ward of the center of gravity and dragline mechanism for controlling said bottom, substantially as shown.

8. The combination of a shovel having a body portion, a rigidly fastenedbail to said body portion, sheaves and housings fastened to said body, abar fastened across said body, a bottom having a cutting edge integraltherewith said bottom being hinged to said body, lugs fastened near oneend of said bottom, a drag line having a double lead at one end and asingle lead at the other end, the double lead of said drag line fastenedto the lugs on said bottom brought into engagement with said sheaves,and its 15 single end extending forward of the front end of said shovel,substantially as shown and described.

In testimony whereof I aflix my signa in presence of two Witnesses.

HEN-RY G. BUTLER.

lVitnesses:

EVANGELINE O. GIeBoNs, A. B. CORNELIUS.

